Hollywood actress Angelina Jolie slept with her mother's boyfriend when she was 16 years old, claims a biography.

According to the book being written by Andrew Morton, the star had intimate relations with her mother Marcheline's live-in lover.

"Marcheline had a live-in boyfriend whom she was very much in love with, but Angelina slept with him when she was 16 and barely out of school," thesun.co.uk quoted a source as saying.

It took years for Jolie, 34, to make amends with her mom, Marcheline Bertrand, after she learned of the shocking tryst. Bertrand was in love with the unidentified man, but dumped him after she found out about the affair, sources told.

Jolie has claimed that she had a close relationship with her mother, who died of cancer in 2007 at the age of 56. But the two women struggled to rebuild their relationship after Jolie confessed to her mother about the incident.